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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Aug. 31, 2018
Income Tax Disclosure [Abstract]
Tax adjustment for unusual items	$ 0	$ 0
Income tax expense	$ 469	$ 1,607
Estimated effective income tax rate	27.90%	33.50%
U.S. federal corporate income tax rate	21.00%	35.00%
Provision deemed repatriation transition tax obligation			$ 1,700

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to repatriation of foreign earnings.

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